Connector and connector assembly
A connector is mountable on a circuit board and mateable with a mating connector along a front-rear direction. The connector comprises a ground member, a holding member, a plurality of contacts and a midplate. The ground member has an upper plate portion, a lower plate portion, a coupling portion, a fixed leg and an extending portion. Each of the upper plate portion and the lower plate portion extends in a predetermined plane intersecting with an up-down direction. The fixed leg is configured to be fixed to the circuit board. The fixed leg extends downward in the up-down direction from the extending portion. The extending portion connects the fixed leg and the lower plate portion with each other. The extending portion extends in the predetermined plane from the lower plate portion. The plurality of contacts are arranged in two contact rows.
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This invention relates to a connector which is mountable on a circuit board and which is mateable with a mating connector, and to a connector assembly.
BACKGROUND ARTReferring to
Patent Document 1: JPU 3198686
SUMMARY OF INVENTION Technical ProblemGenerally, in a case where a ground member and a circuit board are connected with each other through a shell or the like, a connector may have variations in electrical characteristic depending on reliability of connection of the ground member with the shell or the like and on reliability of connection of the shell or the like with the circuit board.
It is therefore an object of the present invention to provide a connector which can have a stable electrical characteristic and which has a reduced height.
Solution to ProblemAn aspect of the present invention provides a connector mountable on a circuit board and mateable with a mating connector along a front-rear direction. The mating connector comprises a plurality of mating contacts. The connector comprises a ground member, a holding member, a plurality of contacts and a midplate. The ground member has an upper plate portion, a lower plate portion, a coupling portion, a fixed leg and an extending portion. The upper plate portion and the lower plate portion are arranged so as to be apart from each other in an up-down direction perpendicular to the front-rear direction. Each of the upper plate portion and the lower plate portion extends in a predetermined plane intersecting with the up-down direction. The coupling portion couples the upper plate portion and the lower plate portion with each other. The fixed leg is configured to be fixed to the circuit board. The fixed leg extends downward in the up-down direction from the extending portion. The extending portion connects the fixed leg and the lower plate portion with each other. The extending portion extends in the predetermined plane from the lower plate portion. The holding member has a holding portion and a fitting portion. The holding portion is sandwiched by the upper plate portion and the lower plate portion in the up-down direction. The fitting portion extends forward in the front-rear direction from the holding portion. The fitting portion is positioned forward in the front-rear direction beyond any of the upper plate portion and the lower plate portion. The fitting portion has an upper surface and a lower surface each facing in the up-down direction. The plurality of contacts are arranged in two contact rows. The contacts of each of the contact rows are arranged in a pitch direction perpendicular to the front-rear direction and the up-down direction. Each of the contacts has a held portion and a contact portion. The held portion is held by the holding portion. The contact portions are configured to be brought into contact with the mating contacts, respectively, of the mating connector when the connector is mated with the mating connector. The contact portion is exposed outside the fitting portion on the upper surface or the lower surface of the fitting portion. The midplate is held by the holding member so as to be positioned between the contact rows in the up-down direction.
Another aspect of the present invention provides a connector assembly comprising the connector and the circuit board. The circuit board is formed with a single through hole. The midplate has a leg portion. The leg portion and the fixed leg are fixed to the single through hole.
Advantageous Effects of InventionIn the connector of the present invention, the ground member can be directly connected to a circuit board. Accordingly, as compared with a connector having a structure in which a ground member and a circuit board are connected with each other through a shell or the like, the connector of the present invention can be prevented from having variations in electrical characteristic even if the connector has variations in quality resulting from a connecting process of an assembly of the connector.
Furthermore, in the connector of the present invention, the extending portion extends in a plane same as a plane in which the lower plate portion extends, and the fixed leg extends from the extending portion. Accordingly, the fixed leg can have an increased length. In other words, the fixed leg can have an increased dimension in the up-down direction. Thus, when the fixed leg is soldered to a circuit board in a case where the connector of the present invention is fixed on the circuit board, there is a reduced possibility that the contacts are short-circuited with each other by solder which flows up the fixed leg.
An appreciation of the objectives of the present invention and a more complete understanding of its structure may be had by studying the following description of the preferred embodiment and by referring to the accompanying drawings.
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.
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The auxiliary press-fit portions 280 extend rearward in the front-rear direction from the coupling portions 230, respectively. More specifically, each of the auxiliary press-fit portions 280 extends rearward in the front-rear direction from a rear end of the coupling vertical portion 232 of the coupling portion 230 corresponding thereto. Each of the auxiliary press-fit portions 280 is provided with auxiliary engaging protrusions 282 each of which protrudes in a direction perpendicular to the front-rear direction. More specifically, the auxiliary engaging protrusions 282 are positioned at opposite ends of the auxiliary press-fit portion 280 in the up-down direction and each protrudes outward in the up-down direction.
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Meanwhile, the upper engaging protrusions 262 bite into the inner walls of the upper press-fit ditch 330 which face each other in the pitch direction, and the upper bulge 264 is brought into pressing contact with the inner wall of the upper press-fit ditch 330 which is positioned at an upper side of the upper press-fit ditch 330. Accordingly, the upper main portion 261 is pressed to the inner wall of the upper press-fit ditch 330 which is positioned at a lower side of the upper press-fit ditch 330, while the upper plate portion 210 is pressed to an upper surface of the holding portion 310. Also meanwhile, the lower engaging protrusions 272 bite into the inner walls of the lower press-fit ditch 340 which face each other in the pitch direction, and the lower bulge 274 is brought into pressing contact with the inner wall of the lower press-fit ditch 340 which is positioned at a lower side of the lower press-fit ditch 340. Accordingly, the lower main portion 271 is pressed to the inner wall of the lower press-fit ditch 340 which is positioned at an upper side of the lower press-fit ditch 340, while the lower plate portion 220 is pressed to a lower surface of the holding portion 310. Thus, even if the connector 100 is repeatedly inserted into and removed from the mating connector (not shown), the ground member 200 can be prevented from being lifted from the holding member 300 and from being removed from the holding member 300 by being pulled forward.
In addition, meanwhile, the auxiliary engaging protrusions 282 bite into the inner walls of the auxiliary press-fit ditch 350 which face each other in the up-down direction. Accordingly, each of the auxiliary press-fit portions 280 is rigidly held by the auxiliary press-fit ditch 350 corresponding thereto, so that the ground member 200 is further rigidly attached to the holding member 300.
Since the ground member 200 is formed as the single component as described above, the ground member 200 can be attached to the holding member 300 in a simplified process as compared with a ground member formed as multiple members. In addition, as described above, the ground member 200 is attached to the holding member 300 by being press-fit into the holding member 300 from its front. Accordingly, as compared with a ground member attached to a holding member along an up-down direction, lift and removal of the ground member 200 from the holding member 300 are prevented when the mating connector (not shown) is mated with and removed from the connector 100.
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In the connector assembly 10 of the present embodiment, the first fixed portion 406 of each of the first contacts 400 and the second fixed portion 456 of each of the second contacts 450 are fixed on the circuit board 700 by soldering. In addition, the projecting portions 372 of the holding member 300 are inserted into the apertures 720, respectively, of the circuit board 700, so that the holding member 300 is fixed to the circuit board 700.
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While the present invention has been described with specific embodiments, the present invention is not limited to the aforementioned embodiments.
Although the connector 100 of the aforementioned embodiment has no shell, the connector 100 may further comprise, as shown in
The ground member 200 of the connector 100 of the aforementioned embodiment has a structure in which the opposite ends of the upper plate portion 210 in the pitch direction and the opposite ends of the lower plate portion 220 in the pitch direction are not coupled with each other. As shown in
In the connector 100A of the modification having the ground member 200A, the upper plate portion 210 and the lower plate portion 220 are rigidly coupled with each other. Accordingly, when the connector 100A is inserted into and removed from a mating connector (not shown), the ground member 200A can be more securely prevented from being lifted from the holding member 300.
The present application is based on a Japanese patent application of JP2015-219671 filed before the Japan Patent Office on Nov. 9, 2015, the content of which is incorporated herein by reference.
While there has been described what is believed to be the preferred embodiment of the invention, those skilled in the art will recognize that other and further modifications may be made thereto without departing from the spirit of the invention, and it is intended to claim all such embodiments that fall within the true scope of the invention.
Claims
1. A connector mountable on a circuit board and mateable with a mating connector along a front-rear direction, wherein:
- the mating connector comprises a plurality of mating contacts;
- the connector comprises a ground member, a holding member, a plurality of contacts and a midplate;
- the ground member has an upper plate portion, a lower plate portion, a coupling portion, a fixed leg and an extending portion;
- the upper plate portion and the lower plate portion are arranged so as to be apart from each other in an up-down direction perpendicular to the front-rear direction;
- each of the upper plate portion and the lower plate portion extends in a predetermined plane intersecting with the up-down direction;
- the coupling portion couples the upper plate portion and the lower plate portion with each other;
- the fixed leg is configured to be fixed to the circuit board;
- the fixed leg extends downward in the up-down direction from the extending portion;
- the extending portion connects the fixed leg and the lower plate portion with each other;
- the extending portion extends in the predetermined plane from the lower plate portion;
- the holding member has a holding portion and a fitting portion;
- the holding portion is sandwiched by the upper plate portion and the lower plate portion in the up-down direction;
- the fitting portion extends forward in the front-rear direction from the holding portion;
- the fitting portion is positioned forward in the front-rear direction beyond any of the upper plate portion and the lower plate portion;
- the fitting portion has an upper surface and a lower surface each facing in the up-down direction;
- the plurality of contacts are arranged in two contact rows;
- the contacts of each of the contact rows are arranged in a pitch direction perpendicular to the front-rear direction and the up-down direction;
- each of the contacts has a held portion and a contact portion;
- the held portion is held by the holding portion;
- the contact portions are configured to be brought into contact with the mating contacts, respectively, of the mating connector when the connector is mated with the mating connector;
- the contact portion is exposed outside the fitting portion on the upper surface or the lower surface of the fitting portion; and
- the midplate is held by the holding member so as to be positioned between the contact rows in the up-down direction.
2. The connector as recited in claim 1, wherein the extending portion extends rearward in the front-rear direction from the lower plate portion.
3. The connector as recited in claim 1, wherein:
- the upper plate portion has a rear end in the front-rear direction;
- the lower plate portion has a rear end in the front-rear direction; and
- the coupling portion couples the rear end of the upper plate portion and the rear end of the lower plate portion with each other.
4. The connector as recited in claim 3, wherein the extending portion is a part of the coupling portion.
5. The connector as recited in claim 1, wherein:
- the ground member further has an upper press-fit portion and a lower press-fit portion;
- the upper press-fit portion extends rearward in the front-rear direction from the upper plate portion;
- the lower press-fit portion extends rearward in the front-rear direction from the lower plate portion;
- the holding member is formed with an upper press-fit ditch and a lower press-fit ditch;
- the upper press-fit portion is received in the upper press-fit ditch; and
- the lower press-fit portion is received in the lower press-fit ditch.
6. The connector as recited in claim 5, wherein:
- the upper press-fit portion has an upper main portion, an upper engaging protrusion and an upper bulge;
- the upper main portion has a plate-like shape and extends rearward in the front-rear direction from the upper plate portion;
- the upper engaging protrusion protrudes in the pitch direction from the upper main portion;
- the upper bulge is bulged upward in the up-down direction from the upper main portion;
- the lower press-fit portion has a lower main portion, a lower engaging protrusion and a lower bulge;
- the lower main portion has a plate-like shape and extends rearward in the front-rear direction from the lower plate portion;
- the lower engaging protrusion protrudes in the pitch direction from the lower main portion; and
- the lower bulge is bulged downward in the up-down direction from the lower main portion.
7. The connector as recited in claim 5, wherein:
- the two contact rows include a first contact row and a second contact row;
- the first contact row is positioned above the second contact row in the up-down direction;
- the upper press-fit portion is positioned above the lower press-fit portion in the up-down direction;
- in the pitch direction, the upper press-fit portion is arranged inward of the contacts which are arranged at opposite ends, respectively, of the first contact row in the pitch direction; and
- in the pitch direction, the lower press-fit portion is arranged inward of the contacts which are arranged at opposite ends, respectively, of the second contact row in the pitch direction.
8. The connector as recited in claim 1, wherein:
- the ground member further has an auxiliary press-fit portion;
- the auxiliary press-fit portion extends rearward in the front-rear direction from the coupling portion;
- the auxiliary press-fit portion is provided with a auxiliary engaging protrusion which protrudes in a direction perpendicular to the front-rear direction;
- the holding member is formed with an auxiliary press-fit ditch; and
- the auxiliary press-fit portion is received in the auxiliary press-fit ditch.
9. The connector as recited in claim 1, wherein the ground member is formed as a single component.
10. The connector as recited in claim 1, wherein:
- the holding member has an outer circumference; and
- the coupling portion of the ground member is positioned inward of the outer circumference of the holding member in a direction perpendicular to the front-rear direction.
11. A connector assembly comprising the connector as recited in claim 1 and the circuit board, wherein:
- the circuit board is formed with a single through hole;
- the midplate has a leg portion; and
- the leg portion and the fixed leg are fixed to the single through hole.
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Type: Grant
Filed: Oct 13, 2016
Date of Patent: Feb 26, 2019
Patent Publication Number: 20180309243
Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED (Tokyo)
Inventor: Tomoya Kurosawa (Tokyo)
Primary Examiner: Ross N Gushi
Application Number: 15/766,917
International Classification: H01R 13/658 (20110101); H01R 13/6581 (20110101); H01R 24/60 (20110101); H01R 13/405 (20060101); H01R 13/502 (20060101); H01R 107/00 (20060101);